I have three trains that match your specifications. Do you have a time you would like to leave by?
No, any of them is fine. Please give me the departure time that you choose.
train-arriveby train-day train-departure train-destination
train-arriveby train-day train-departure train-destination
train-arriveby train-day train-departure train-destination
train-arriveby train-day train-departure train-destination